
// Licensed to the Apache Software Foundation (ASF) under one
// or more contributor license agreements.  See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership.  The ASF licenses this file
// to you under the Apache License, Version 2.0 (the
// "License"); you may not use this file except in compliance
// with the License.  You may obtain a copy of the License at
// 
//   http://www.apache.org/licenses/LICENSE-2.0
// 
// Unless required by applicable law or agreed to in writing,
// software distributed under the License is distributed on an
// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
// KIND, either express or implied.  See the License for the
// specific language governing permissions and limitations
// under the License.

/**
 * AUTO-GENERATED FILE. DO NOT MODIFY.
 */

// Licensed to the Apache Software Foundation (ASF) under one
// or more contributor license agreements.  See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership.  The ASF licenses this file
// to you under the Apache License, Version 2.0 (the
// "License"); you may not use this file except in compliance
// with the License.  You may obtain a copy of the License at
// 
//   http://www.apache.org/licenses/LICENSE-2.0
// 
// Unless required by applicable law or agreed to in writing,
// software distributed under the License is distributed on an
// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
// KIND, either express or implied.  See the License for the
// specific language governing permissions and limitations
// under the License.
function getCenterCoord(view, point) {
	// Use projected coord as center because it's linear.
	return view.pointToProjected ? view.pointToProjected(point) : view.pointToData(point);
}

export function updateCenterAndZoom(view, payload, zoomLimit, api) {
	var previousZoom = view.getZoom();
	var center = view.getCenter();
	var zoom = payload.zoom;
	var point = view.projectedToPoint ? view.projectedToPoint(center) : view.dataToPoint(center);

	if (payload.dx != null && payload.dy != null) {
		point[0] -= payload.dx;
		point[1] -= payload.dy;
		view.setCenter(getCenterCoord(view, point), api);
	}

	if (zoom != null) {
		if (zoomLimit) {
			var zoomMin = zoomLimit.min || 0;
			var zoomMax = zoomLimit.max || Infinity;
			zoom = Math.max(Math.min(previousZoom * zoom, zoomMax), zoomMin) / previousZoom;
		} // Zoom on given point(originX, originY)

		view.scaleX *= zoom;
		view.scaleY *= zoom;
		var fixX = (payload.originX - view.x) * (zoom - 1);
		var fixY = (payload.originY - view.y) * (zoom - 1);
		view.x -= fixX;
		view.y -= fixY;
		view.updateTransform(); // Get the new center

		view.setCenter(getCenterCoord(view, point), api);
		view.setZoom(zoom * previousZoom);
	}

	return {
		center: view.getCenter(),
		zoom: view.getZoom()
	};
}